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New 3B4508 Lockwasher Replacement suitable for Caterpillar Equipment
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Description for 3B4508 Lockwasher
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Customer Reviews
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Excellent service and very very good service
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Great prices prompt courteous customer service and fast shipping.
They are great !
Will definitely use regularly!
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Product Questions
Frequently Asked Questions
What is the Caterpillar 3B4508 lockwasher used for?
The 3B4508 lockwasher is designed to secure bolts and fasteners in Caterpillar equipment. Its split-spring design helps maintain tension on the fastener, preventing loosening caused by vibration, heavy loads, or continuous machine operation.
What are the key specifications of the 3B4508 lockwasher?
This lockwasher typically features an internal diameter of about 12.75 mm (0.50 in), an outer diameter of about 22 mm (0.87 in), and a thickness of around 3.18 mm (0.125 in). It is commonly made from spring steel with a zinc coating for strength and corrosion resistance.
Which Caterpillar equipment commonly uses the 3B4508 lockwasher?
The 3B4508 lockwasher is used in a variety of Caterpillar machines, including excavators, engines, generator sets, backhoe loaders, and asphalt pavers. It may also appear in models such as 312-series excavators, 3304 engines, and AP-series asphalt pavers depending on the configuration.
Is the 3B4508 lockwasher available as an aftermarket replacement?
It\'s a premium aftermarket replacement. The 3B4508 is designed to match OEM specifications in fit, form, and function. If you\'d like to confirm it\'s the right choice for your application, the Propel Parts team is available to help.
Why are lockwashers important in heavy equipment assemblies?
Lockwashers help maintain consistent clamping force between fastened parts. In heavy machinery where vibration and movement are common, they reduce the risk of bolts loosening, which helps maintain equipment safety and reliability.
How do I confirm if the 3B4508 lockwasher fits my Caterpillar machine?
To ensure compatibility, check your machine model, serial number, or the existing part number. Many suppliers verify fitment using tools such as CAT SIS (Caterpillar Service Information System) before shipping to confirm the correct replacement part.
When should the Caterpillar 3B4508 lockwasher be replaced?
The 3B4508 should be replaced during scheduled maintenance, after any system failure, or whenever inspection reveals wear, damage, or degradation. Proactive replacement helps avoid unexpected downtime and protects adjacent components.
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We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
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Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
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Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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